Retro Edition: VCF East, April 17 – 19
Around this time last year we were planning our trip to the Vintage Computer Festival East in Wall, NJ. This year we’re doing it all over again, and according to the announcements coming out of the planning committee, it’s going to be a very, very cool event.
This year marks fifty years since the release of the PDP-8, regarded as the first commercially successful computer ever. The historic Straight-8 from the infamous RESISTORS has been restored over the past few months, and it’s going to be turned on again for the festival. There will also be a half a dozen …read more
Cardboard CNC Machine Boxes Up both a Tool and a Framework
Want to build up a desktop CNC machine without breaking your pocketbook? [James Coleman], [Nadya Peek], and [Ilan Moyer] of MIT Media Labs have cooked up a modular cardboard CNC that gives you the backbone from which you can design your own machine.
The CNC build comprises of design instructions for a single axis linear stage and single axis rotary stage with several ideas on how to combine multiple of these axes together to construct a particular machine. Whether your milling wood, laser-engraving your desk, or pipetting your bacteria samples, the designs [Dropbox] and physical components can be adopted for …read more
Arduino v. Arduino
Arduino LLC is suing Arduino Srl (the Italian version of an LLC). Sounds confusing? It gets juicier. What follows is a summary of the situation as we learned it from this article at MakeMagazin.de (google translatrix)
Arduino LLC is the company founded by [Massimo Banzi], [David Cuartielles], [David Mellis], [Tom Igoe] and [Gianluca Martino] in 2009 and is the owner of the Arduino trademark and gave us the designs, software, and community support that’s gotten the Arduino where it is. The boards were manufactured by a spinoff company, Smart Projects Srl, founded by the same [Gianluca Martino]. So far, so …read more
We Assume Control: SPI and a Digital Potentiometer
In the last video I demonstrated a Universal Active Filter that I could adjust with a dual-gang potentiometer, here I replace the potentiometer with a processor controlled solid-state potentiometer. For those that are too young to remember, we used to say “solid-state” to differentiate between that and something that used vacuum tubes… mostly we meant you could drop it without it breakage.
The most common way to control the everyday peripheral chips available is through use of one of the common Serial Protocols such as I2C and SPI. In the before-time back when we had only 8 bits and were …read more
Logic Noise: The Switching Sequencer Has the Beat
Logic Noise is all about using logic circuits to make sounds. Preferably sound that will be enjoyable to hear and useful for making music. This week, we’ll be scratching the surface of one of my favorite chips to use and abuse for, well, nearly anything: the 4051 8-way analog switch. As the name suggests, you can hook up eight inputs and select one from among them to be connected up to the output. (Alternatively, you can send a single input to one of eight destinations, but we won’t be doing that here.)
Why is this cool? Well, imagine that you …read more